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US 5,019,113 AGranted
Rotary lawn mower blade assembly
OwnerJohn F. Burnellinventor
Life of this patent
Estimating the term…
Abstract
A rotatable blade assembly suitable for use on a rotary power lawn mower is provided having an elongated bar member adapted to rotate in a substantially horizontal plane within the housing of a rotary lawn mower to which is detachably secured at diametrically opposed ends thereof cutting blade elements having cutting edges formed at oppositely facing edges which can be secured to the bar member without the need for special tools for removing the blade assembly from the shaft of the mower motor.
Claims5
A rotatable blade assembly for a rotary power lawn mower which comprises:
- (a) an elongated bar member adapted to rotate in a substantially horizontal plane about an aperture formed centrally therethrough having means for detachably securing cutting element means to one surface of diametrically opposed end portions of said bar member which includes tab pocket forming means, pin means having an oblong shaped head spaced from the surface of said bar member and blade locking means in associated relationship extending from said surface of the bar member;
- and
- (b) cutting element means having a centrally formed longitudinal slot therethrough of complementary size to the oblong shaped head of said pin means which are adapted for being readily detachably secured to said diametrically opposed end portions of said bar member with oppositely directed grass cutting edges being operatively disposed for cutting grass during operation of a rotary power mower, wherein said cutting element means are detachably secured to said bar member without the need for special tools or removing said bar member from the shaft of a rotary mower motor.
A rotatable blade assembly for a rotary power lawn mower which comprises:
- (a) an elongated bar member adapted to rotate in a substantially horizontal plane about an aperture formed centrally therethrough having means for detachably securing cutting element means to one surface of diametrically opposed end portions of said bar member which includes spaced pocket forming tab means, pin means and blade locking means in associated relationship extending from said surface of the bar member;
- and
- (b) cutting element means adapted for being readily detachably secured in a substantially overlying relationship to said diametrically opposed end portions of said bar member with oppositely directed grass cutting edges being operatively disposed for cutting grass during operation of a rotary power mower, wherein said cutting element means are detachably secured to said bar member without the need for special tools or removing said bar member from the shaft of a rotary mower motor.
Dependencies are inferred from the claim text.